Filed at 8:44 p.m. ET WASHINGTON (AP) -- The Agriculture Department has failed to adequately answer questions about how the agency handled a recall of 19 million pounds of contaminated hamburger meat, four members of Congress said in a letter to Agriculture Secretary Ann Veneman. The four lawmakers -- Reps. Henry Waxman, D-Calif.; Mary Kaptur, D- Ohio; Rosa DeLauro, D-Conn.; and Sen. Richard Durbin R-Ill. -- demanded in a letter Thursday that the agency explain why it failed to quickly recall the meat after initial tests showed it was contaminated with E. coli bacteria. They said Elsa Murano, the department's...